Bilanz über 5 Jahre VGS-Ringversuche: Organische Parameter in synthetischen Abwasserproben

The definition of a nominal value and admissible procedure characteristics for the performance of interlaboratory trials are regarded controversial. However, trends of the recently performed 10 interlaboratory trials according to the Berlin indirect discharger regulation indicate that even the evaluation of interlaboratory trial results concerning the determination of organic parameters in synthetic wastewater samples may be based on given data. These are evaluated in dependency of the parameter groups and of respective conditions of preparation and analysis, either on reference values or on weight - in quantity.